Once a mine has been exhausted of its ore, there's really no use for it anymore – it just becomes an abandoned hole in the ground. According to a new study, however, the shafts of such mines could ...

An abandoned mine in Finland is set to be transformed into a giant battery to store renewable energy during periods of excess production. The Pyhäsalmi Mine, roughly 450 kilometres north of Helsinki, ...

After achieving mechanical completion of the critical power electronic components, commissioning of the newly constructed EVx started in June as planned, and is expected to be fully interconnected to ...